• United Kingdom Jobs Expertini profile avatar

    • 2,204,187+ Lead Principal Developer For Python Apis Cloud Jobs in UK — Top Companies Hiring June 2026

    Professional job seekers finding United Kingdom jobs through Expertini
    750,000+ professionals on Expertini 750,000+ Candidates
    Join our global community
    Explore Leading Employers
    High-Paying Careers
    Expertini Penguin Mascot Resume Score™
    Resume Score™ Instantly
    Upload Your CV
    Quick 30-second process

    Apply Today & Jumpstart Your Career on Expertini, Trusted Since 2008.

    1. Expertini
    2. United Kingdom
    3. Jobs
    4. Lead Principal Developer For Python Apis Cloud Jobs in United Kingdom

    5. Download PDF

    Reset

    Create Job Alert
      Add Alert

     
     
    Create Alert
     
    Reset

    Lead Principal Developer for Python, APIs & Cloud

    LSL Property Services plc in Kettering is seeking a Technical Lead to design, develop, and support modern software solutions. You will lead development teams, manage software lifecycle, and engage stakeholders across various projects. The ideal candidate possesses extensive Python expertise and experie ...

    Full Stack Developer (React/Python/.NET) – Cloud & APIs

    Creditsafe Business Solutions in Cardiff is seeking a Mid-Level Software Developer to join their software development team. In this full-time role, you will design, develop, deploy, and maintain scalable software solutions primarily using React for the frontend and Python and .NET for the backend. The ...

    Senior Technical Lead | Python/Django, APIs & Cloud

    Scrumconnect Consulting in Staines-upon-Thames is seeking a Senior Data Analyst to design and develop reporting dashboards for a major digital transformation program. The ideal candidate will possess strong skills in Python, Django, and PostgreSQL, leading development teams and implementing best practices. </ ...

    Senior Python Engineer: Cloud, React & APIs

    Tech4 is seeking a Senior Python Developer in Newcastle Upon Tyne to design and maintain complex software and digital products. The role demands expertise in Python, AWS, and ReactJS, promoting high-quality development practices. With a focus on innovation, the successful candidate ensures systems meet ...

    Platform Lead Developer: Cloud‑Native Backend & APIs

    VOIS is seeking a Platform Lead Developer to design, build, and maintain cloud-native services for Vodafone’s Digital & IT Platform. This role involves collaborating with cross-functional teams to deliver secure and scalable digital capabilities. Candidates should have over 7 years of software engineer ...

    Platform Lead Developer – Cloud Native APIs & Microservices

    Vodafone is seeking a Platform Lead Developer to design and maintain cloud-native services that support Vodafone’s Digital & IT Platform in Newbury. You will work within cross-functional teams to shape APIs and integrations, driving end-to-end customer experiences. The ideal candidate has over 7 years' ...

    Python Developer: Automation, APIs & Kubernetes (Hybrid)

    GCS Recruitment is seeking a skilled Python Developer for a major banking client in the United Kingdom. This role involves designing automation solutions and building APIs using FastAPI, along with managing containerized services for large-scale database operations. The position is hybrid, requiring 3 ...

    Backend Python Developer for Enterprise Cloud Integrations

    A professional services firm in Birmingham seeks a Backend Developer for a 12-month contract. The successful candidate will design and build cloud-based integration solutions, primarily using Azure Service Bus and Python. Key responsibilities include developing Function Apps and supporting data migrations. Ideal ...

    Python Developer for Cloud Native Trading Platform

    Cititec is searching for an experienced Python Developer for a 6-month contract with a major energy trading firm. The role involves working on a cloud-native platform that supports real-time intraday position and P&L reporting for the trading business. You will design and maintain secure applications, ...

    Senior Python Cloud Developer

    About Oxford Nanopore Technologies Oxford Nanopore Technologies is headquartered at the Oxford Science Park outside Oxford, UK, with satellite offices and a commercial presence in many global locations across the US, APAC and Europe. The company brings the widest benefits to society through enabli ...

    Senior Python Cloud Developer

    About Oxford Nanopore TechnologiesOxford Nanopore Technologies is headquartered at the Oxford Science Park outside Oxford, UK, with satellite offices and a commercial presence in many global locations across the US, APAC and Europe. Oxford Nanopore employs from multiple subject areas including nanopor ...

    Senior Python Cloud Developer

    About Oxford Nanopore TechnologiesOxford Nanopore Technologies is headquartered at the Oxford Science Park outside Oxford, UK, with satellite offices and a commercial presence in many global locations across the US, APAC and Europe.Oxford Nanopore employs from multiple subject areas i ...

    Senior Software Engineer Python, APIs & Cloud Pioneer

    Barclays is seeking a Senior Software Developer to join their team in London. You will embark on a transformative journey to design, develop, and improve software solutions, utilising various engineering methodologies. Your role will involve collaboration with product managers and designers to align with busi ...

    Hybrid Python Developer — Build Enterprise Apps & APIs

    Tata Consultancy Services is seeking a Python Developer in the UK to design, develop, and maintain in-house applications. This hybrid role requires strong Python skills and experience with databases, especially Oracle. You will collaborate with various teams to deliver scalable solutions. The ideal can ...

    Lead Python Developer

    Location: Leeds (Hybrid / UK-based with travel) Employment Type: Full-time, Permanent Sector: Digital Consultancy / Software Engineering Overview Our client is seeking an experienced Lead Python Developer to join their growing digital consul ...

    Lead Python Developer

    Job Title: Lead Python Developer Location: United Kingdom (Remote) Salary/Rate: £425 - £450 (Inside IR35) Start Date: Immediately Job Type: 12 Month Contract We are seeking an experienced Lead Python Developer to join a distrib ...

    Lead Python Developer

    As a Lead Python Developer at Fundment, you’ll lead a pod of 3 - 4 engineers, including yourself, combining hands‑on development (around 50% of your time) with technical leadership. You’ll drive execution, uphold delivery quality, and ensure the team builds reliable, maintainable systems that serve real bu ...

    Lead Python Developer

    About The Role Hippo is a rapidly growing digital consultancy passionate about building and delivering transformative digital solutions for a diverse range of Public and Private sector clients. We are recruiting for a Lead Python Developer to join our Hippo Herd. We work at the intersecti ...

    Lead Python Developer

    About the Role Hippo is a rapidly growing digital consultancy passionate about building and delivering transformative digital solutions for a diverse range of Public and Private sector clients. We are recruiting for a Lead Python Developer to join our Hippo Herd. We work at the intersecti ...

    Lead Python Developer

    Python Developers CGI’s Space, Defence and Intelligence business unit focuses on delivering contemporary and innovative technical solutions to government agencies tackling some of the most complex challenges. We design, build, and operate bespoke, mission‑critical systems that help keep the UK sa ...

    Lead Python Developer

    Job Title: Lead Python Developer Job Location: London, UK, Remote (occasional visit to office) Job Type: FTE Job Description: Python Developer ...

    Lead Python Developer — Hybrid Cloud Delivery Leader

    A leading digital consultancy is seeking an experienced Lead Python Developer to join their team in Leeds. The role involves technical leadership, coaching engineers, and delivering user-centred digital solutions. Candidates should have a strong background in software development practices, particularly in agile ...

    Lead Python Developer – Cloud, FastAPI & Data Platforms

    Oliver Bernard is seeking a Lead Python Developer for a leading InsurTech company in Central London. The role offers a salary of up to £110k with a bonus and benefits, and involves leading a small Engineering team to address complex challenges while establishing best practices. The successful candidate ...

    Principal Python & Cloud Architect (Hybrid)

    Procode-Technology-Limited based in Chandler's Ford is seeking a Principal Software Engineer – Python to architect complex systems that impact customers. In this role, you’ll work with Python, AWS, and be part of an Agile team that thrives on curiosity and collaboration. The ideal candidate has a deep ...

    Lead Python Developer PoC Integrations for Insurance

    Benefact Group in Gloucester is seeking a Lead Python Developer for a 3-month contract (Outside IR35). You will design and deliver a proof of concept integrating a modern off-site rating platform with an on-prem IBM Power environment. Key responsibilities include developing a scalable CI/CD pipeline and enabl ...

    Backend Developer APIs, Cloud & CI/CD Expert

    Crossing Hurdles is seeking a skilled software developer to develop and integrate RESTful APIs ensuring secure data exchange. You will model and maintain SQL databases, champion clean code practices, and collaborate in Agile teams. The ideal candidate possesses in-depth knowledge of algorithms and obje ...

    Python Developer – APIs & LLM Data Infrastructure (Energy Markets)

    Overview Modo Energy is building the data and AI infrastructure behind the energy transition — ingesting global energy datasets and powering APIs, analytics platforms, and LLM-driven systems that understand real-world power markets. Our data platform processes huge volumes of energy marke ...

    Python Software Developer — Build scalable APIs (Hybrid, London)

    Corriculo Ltd is seeking a Software Developer with strong Python skills for a hybrid role based in London. In this position, you will design and maintain internal applications and automation tools to improve business efficiency. The ideal candidate will have experience in both front-end and back-end de ...

    Senior .NET Developer Cloud, APIs & Scalable Systems

    A technology solutions provider in the UK is looking for a skilled software developer to develop and maintain applications using C# and .NET. The ideal candidate will have strong experience with ASP.NET Core and Azure services, including App Services and Functions. Responsibilities include troubleshooting applic ...

    Java Developer | Cloud, APIs, TDD & CI/CD

    IBM in Leicester is seeking an Application Developer (Java & Web Technologies) to join their team. The role involves designing and developing applications using Java/JEE and modern web technologies. Applicants should possess a Bachelor's Degree and strong skills in Java development, API integration, an ...

    Java Developer | Cloud, APIs, TDD & CI/CD

    IBM is looking for an Application Developer (Java & Web Technologies) in Hursley, England. This role involves designing and building high-quality applications utilizing the Java/JEE stack along with modern web technologies. Successful candidates should demonstrate proficiency in Java frameworks like Sp ...

    Dotnet Core Developer — Cloud APIs, Blazor & Azure

    Digital Waffle in Birmingham is looking for a talented .NET Developer to join their growing technology team. This permanent role offers a salary between £50,000 and £55,000. In this position, you will develop and enhance critical systems, build web applications, and contribute to system design. The com ...

    Senior .NET Developer – Web APIs, Kubernetes & Cloud

    Barclays - BX - UK in Glasgow is seeking a .NET Developer to design and deliver high-performance .NET 8 Web APIs within a modern, distributed environment. This role involves applying expertise in ASP.NET Core, C#, and database technologies to build scalable solutions. As part of a team transitioning fr ...

    Lead Fullstack Engineer (Java/JS) for Cloud Native APIs

    A leading bank in the UK is looking for a talented Lead Fullstack Software Engineer to join their hybrid work environment. This role will require you to lead engineering teams to design, build, and deploy scalable applications. The ideal candidate will possess strong experience in Java, with familiarity in front ...

    Senior Python Backend Engineer for AI Driven APIs

    A growing tech startup is seeking a Senior Consultant to revolutionize backend systems using Python and cutting-edge technologies. You'll design and implement robust APIs, contributing to AI-assisted development while ensuring high technical standards. Ideal candidates possess expertise in Python, SQL, and have ...

    Python Developer / Team Lead

    Python Developer / Team Lead London / WFH to £120kAre you a skilled Python Developer with team leadership experience?You could be progressing your career at a well-funded and profitable FinTech start-up.As a Python Developer / Team Lead you'll head up a small, talented tech team to ...

    Python Developer / Team Lead

    Python Developer / Team Lead London / WFH to £120k Are you a skilled Python Developer with team leadership experience? You could be progressing your career at a well-funded and profitable FinTech start-up. As a Python Developer / Team Lead you'll head up a small, talented tech ...

    Lead Python/Django Developer

    Salary: £? - ? per year Requirements We must have recently worked on a project within Central Government. We must have worked in a lead role. We must have strong Python and Django experience. We must have proven system design capability end to e ...

    Python Developer / Team Lead

    Salary: GBP90000 - GBP per annum + benefits Python Developer / Team Lead London / WFH to £120k Are you a skilled Python Developer with team leadership experience? You could be progressing your career at a well‑funded and profitable FinTech start‑up. As a Python Developer ...

    Python Developer / Team Lead

    Python Developer / Team Lead London / WFH to £120kAre you a skilled Python Developer with team leadership experience?You could be progressing your career at a well-funded and profitable FinTech start-up.As a Python Developer / Team Lead you'll head up a small, talented tech team to ...

    Java Engineer Cloud FIX APIs for Trading

    IG India is looking for a Java Engineer to develop and maintain FIX APIs, crucial for onboarding new clients in their Prime product area. The position requires approximately five years of Java development experience and a strong background in API development. Additional perks include a 12% flexible ben ...

    Senior Principal Engineer Cloud Lead & Mentor (AWS/Python)

    A tech company in London seeks a Principal Engineer to integrate hands-on expertise with leadership skills in a collaborative environment. This role involves mentoring team members while utilizing AWS, Terraform, and Python. The successful candidate will demonstrate a passion for engineering best practices and a ...

    Python Quant Developer — Risk Analytics & Cloud

    A leading global hedge fund is seeking a Quantitative Developer to join their Risk Technology team. This full-time role involves designing risk analytics solutions, building data ingestion pipelines, and developing cloud-native applications with Python. Ideal candidates will have 5+ years of experience in Python ...

    Lead Backend Engineer — APIs, Data & Cloud

    A leading AI platform company in Greater London is looking for a skilled backend developer who excels in Python and has experience with Flask and FastAPI. This role offers the opportunity to take technical leadership on diverse projects while working closely with cross-functional teams. You will be responsible f ...

    Senior Python Developer — Cloud & Cyber Solutions

    NCC Group plc is seeking a Senior Python Developer to join their Cyber Services and Capabilities team in Greater London. In this role, you will design, develop, and maintain high-quality software solutions, leading and mentoring junior developers while collaborating with cross-functional teams. The ide ...

    Risk Engine Developer Python, Data & Cloud

    A financial services company in Greater London is seeking a Software Developer to join its Risk Engines team. The role entails enhancing key Risk Engines and integrating applications while utilizing full-stack Python development and cloud technologies such as AWS. Candidates should possess strong skills in numer ...

    Senior Python Developer — Cloud, Microservices & Mentorship

    NCC Group, based in Westminster, is seeking a skilled Senior Python Developer to join their Cyber Services and Capabilities department. You will be responsible for designing, developing, and maintaining high-quality software systems using Python and cloud technologies. The ideal candidate will demonstr ...

    C++ Developer with Python & Cloud Experience

    e2e Infosys is seeking a C++ Developer to join our innovative technology team in Cambridge. This permanent full-time role offers a flexible salary aligned with your experience and expertise. You will work on developing scalable solutions while collaborating in a supportive work environment. Key require ...

    Hybrid Fullstack Java Developer for Enterprise APIs

    HelloKindred is looking for a Fullstack Java Developer to join a hybrid team in the UK. The role involves designing and building scalable, enterprise-grade applications using Java, Spring Boot, and modern frontend frameworks. You will develop responsive user interfaces and robust backend services while contri ...

    Senior Backend Developer for Game APIs (Hybrid)

    Rebellion in Oxford is seeking an experienced back-end Online Developer to join our tech team. You'll help build and support internal and external web APIs for our game engine team, working on both internal tools and public-facing APIs. The role is primarily backend-focused, requiring strong expertise ...

    🚀 Boost Your Hiring Chances with Our AI-Powered Tool-Kit

    Stand out from thousands of applicants. Use our proven career tools to optimize your applications and land your dream job faster.

    To-Do Planner

    Organize your job search and personal tasks. All data is confidential.

    Open Planner →

    Wellbeing Center

    Access your confidential wellness report and resources to manage job search stress.

    Check Wellbeing →

    Skill Coach

    Plan your skill development with O*NET support to stay competitive in your field.

    Start Coaching →

    Outfit Helper

    Get AI-powered suggestions on what to wear for your next interview.

    Find Outfit →

    Income Tax Calculator

    Plan your finances with our calculator, updated for 2025 tax regulations.

    Calculate Tax →

    Salary Benchmark

    Get accurate, AI-supported salary trends to know your worth and negotiate better.

    Check Salaries →

    Interview Practice

    Practice for any interview with AI-enabled Q&A sessions. All data is private.

    Start Practicing →

    Interview Predictor

    Use our AI-supported tool to predict potential interview questions based on your resume.

    Predict Questions →

    Interview Practice Timer

    Use our mock interview trainer to perfect your answers under timed conditions.

    Start Timer →

    Behavioral Mastery

    Ace tricky behavioral interviews with our AI-powered practice module.

    Master Answers →

    Question Journal

    Confidentially record interview questions you were asked for future reference.

    Open Journal →

    Interview Ace

    A comprehensive tool to help you master every aspect of your interviews.

    Become an Ace →

    Q&A Logs

    Confidentially track your answers to common questions and refine them over time.

    View Logs →

    Application Planner

    Schedule and organize your job applications in one confidential planner.

    Open Planner →

    Cover Letter Tool

    Create perfect, tailored cover letters for each application with AI support.

    Generate Letter →

    Resume Score

    Get instant feedback on your resume with our NLP-supported analysis tool.

    Check My Score →

    ATS Score

    Check your resume's compatibility with Applicant Tracking Systems (ATS).

    Check ATS Score →

    Application Analyzer

    Use AI to analyze job descriptions and optimize your application materials.

    Analyze Application →

    Career Visualizer

    Confidentially plan and visualize your long-term career path and goals.

    Visualize My Career →

    Offer Genius

    Get intelligent insights and strategies to confidently negotiate job offers.

    Negotiate Offers →

    JobFlow

    Track your entire job search progress from application to offer with this intelligent tool.

    Track My Flow →

    JobSense

    Our intelligent matching engine that provides smart job recommendations.

    Get Smart Matches →

    Networking Toolkit

    Tools to build and manage your professional connections. All data is confidential.

    Build Network →

    Professional CV

    A classic, O*NET supported template for corporate and professional roles.

    Use This Template →

    Executive CV

    A premium, O*NET supported template designed for senior and C-level positions.

    Use This Template →

    Modern CV

    A fresh, stylish, O*NET supported template perfect for tech and modern industries.

    Use This Template →

    Creative CV

    A visually distinct, O*NET supported template for design and artistic roles.

    Use This Template →

    Minimalist CV

    A clean, simple, O*NET supported template that focuses purely on content.

    Use This Template →

    Europass CV

    The standard European Union recommended format for wide compatibility.

    Use This Template →

    Student CV

    An institution-recommended template perfect for internships and first jobs.

    Use This Template →

    Graduate CV

    An institution-recommended template for recent graduates entering the workforce.

    Use This Template →

    Academic CV

    The researcher-recommended format for roles in academia and research.

    Use This Template →

    Developer/IT CV

    A tech-savvy recommended template to highlight your technical skills.

    Use This Template →

    Skilled Worker CV

    A trades-recommended template to showcase hands-on skills and experience.

    Use This Template →

    Monochrome CV

    A sleek, black-and-white, O*NET supported template for a professional look.

    Use This Template →

    Art CV

    An artist-recommended template that allows your creativity to shine.

    Use This Template →

    Harvard CV

    A researcher-recommended template based on the classic Harvard format.

    Use This Template →

    Volunteer Research

    Help us improve our platform by joining our community research program.

    Join Research →

    Review Us

    Share your experience with our tools to help other job seekers.

    Share Experience →

    Register

    Create your free account to save jobs, build your profile, and track applications.

    Create Account →

    Login

    Access your dashboard, manage applications, and continue your job search.

    Access Your Account →

    Profile Builder

    Create a comprehensive professional profile that attracts recruiters and showcases your skills.

    Build Your Profile →

    View Profile

    See your public profile exactly as employers will see it. Make sure it's perfect.

    Preview Profile →

    Bookmarked Jobs

    Keep track of all your saved job opportunities in one organized place.

    View Saved Jobs →

    Your Reviews

    View and manage all the company reviews you've submitted.

    See Your Reviews →

    Following

    Manage the list of companies you follow to stay updated on their new openings.

    Manage Following →

    Find Companies

    Discover and research top employers in your country and industry.

    Discover Employers →

    Standalone CV Builder

    Use our O*NET supported CV builder to create a professional resume from scratch.

    Build Your CV →

    PDF to DOC (Beta)

    Convert your PDF resumes or documents into editable Word (DOC) format.

    Convert PDF →

    DOC to PDF (Beta)

    Create universally compatible PDF documents from your Word (DOC) files.

    Create PDF →

    General FAQ

    Find answers to common questions about our job site and platform.

    Read FAQ →

    Job Seekers FAQ

    Get help and find answers to questions specifically for job seekers.

    Get Help →

    Job Matching

    Learn about the technology and algorithms behind how we match you to jobs.

    Learn How →

    Personalized Matching

    Discover how we use your profile and activity to provide customized job suggestions.

    Learn More →

    Quick Apply

    Understand our fast application process and how to make the most of it.

    Learn More →

    Alert Frequency

    Learn how to manage your job alert settings so you get the updates you want.

    Manage Settings →

    Job Alerts Guide

    A complete guide to understanding how job alerts work and how to use them effectively.

    Read Guide →

    Resume Matching

    Learn how our system matches your resume to job requirements.

    Learn More →

    Ethical Branding

    Read our guide to building a professional and ethical personal brand.

    Read Guide →

    Candidate Visibility

    Learn how to increase your visibility to recruiters on our platform.

    Increase Visibility →

    Verified Badge

    Find out how you can get a verified badge to build trust with employers.

    Get Verified →

    AI ATS Technology

    Learn about the advanced AI and ATS technology that powers our platform.

    Learn More →

    ATS Ranking

    Understand how Applicant Tracking Systems rank you as an applicant.

    Learn More →

    Semantic Matching

    Learn how our AI-powered semantic matching goes beyond keywords.

    Learn More →

    💡 Tools that really enhance your application chances and career growth.

    Go to Your Dashboard →

      Lead Principal Developer For Python Apis Cloud Jobs in United Kingdom Job Search Guide, Trends and Insights